Final answer:
Composite numbers are positive integers that have at least one divisor other than 1 and itself. From the given options, 12 and 412 are the composite numbers.
Step-by-step explanation:
In mathematics, a composite number is a positive integer that has at least one divisor other than 1 and itself.
To determine whether a number is composite, we need to check if it is divisible by numbers other than 1 and itself.
From the given options, 2, 7, 23 are prime numbers as they have only two divisors - 1 and the number itself. On the other hand, 12 and 412 are composite numbers as they have divisors other than 1 and themselves.
Therefore, the composite numbers among the given options are 12 and 412.
Composite numbers are positive integers that have at least one divisor other than 1 and itself. From the given options, 12 and 412 are the composite numbers.